Error in Simulink with PV Array. Error in simulation Simscape

Dear MATLABmates:

I'm fairly new in MATLAB and I designed a Buck converter to work with a PV Array. The conections and all the design is OK but when I run it, I obtain the following error:

I don't know why it appears, it seems that all is okey but I obtain that error. The powergui is in continuous but when I change to discrete it appears too.

It's remarkable that when I put a capacitor in parallel with the PV module, it runs the simulation but I want to run it without it.

Please I need your help guys, it's for my final Bachelor thesis. Thank you in advance!

[Mohammed Shariq Ayjaz]

[Do this on your own risk - it's just a last minute option] Open the block of PV , inside it , place capacitor parallel (i.e wherever you are not getting that error). Also, for safety make it tiny in size & hide it under some block so that if you will be safe even if your supervisor/judge asks to open the pv block.

Answer 1

[Joel Van Sickel]

If it works in continuous but fails in discrete, it is likely your time step is too large. You should be able to get it to work with a smaller time step. If that doesn't work, I'd ask that you share your model so that a deeper look can be taken.